Method for operating effusion or transpiration cooling system in e.g. heat shield of spacecraft, involves computing thickness of cooling member based on pressure difference of fluid before and after flowing through cooling member

摘要

The method involves measuring pressure of cooling fluid (22) before and after flowing through a porous cooling member (12), where the fluid comprises inert gas, air, water, gel-like liquid, fuel or oxidizer. Thickness of the cooling member is computed in direction of flow of the fluid based on pressure difference of the fluid before and after flowing through the cooling member. The measurement of the pressure of the fluid and computation of the thickness are performed in various regions (30, 32, 34) of the cooling member that is made of ceramic composite material or metallic material. An independent claim is also included for a combustion chamber comprising a reactor.